import bind-9.11.26-6.el8
This commit is contained in:
CentOS Sources
parent
2c8eb607cd
commit
020fe571be
44
SOURCES/bind-9.11-CVE-2021-25214.patch
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44
SOURCES/bind-9.11-CVE-2021-25214.patch
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@ -0,0 +1,44 @@
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From 4eff09c6b1e524b0efc393ee948b5c4cdf16ccb8 Mon Sep 17 00:00:00 2001
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From: Mark Andrews <marka@isc.org>
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Date: Wed, 3 Feb 2021 11:10:20 +1100
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Subject: [PATCH] Check SOA owner names in zone transfers
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An IXFR containing SOA records with owner names different than the
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transferred zone's origin can result in named serving a version of that
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zone without an SOA record at the apex. This causes a RUNTIME_CHECK
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assertion failure the next time such a zone is refreshed. Fix by
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immediately rejecting a zone transfer (either an incremental or
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non-incremental one) upon detecting an SOA record not placed at the apex
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of the transferred zone.
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---
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lib/dns/xfrin.c | 14 ++++++++++++++
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1 file changed, 14 insertions(+)
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diff --git a/lib/dns/xfrin.c b/lib/dns/xfrin.c
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index 3a3f407289..0ba82e4974 100644
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--- a/lib/dns/xfrin.c
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+++ b/lib/dns/xfrin.c
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@@ -477,6 +477,20 @@ xfr_rr(dns_xfrin_ctx_t *xfr, dns_name_t *name, uint32_t ttl,
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dns_rdatatype_ismeta(rdata->type))
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FAIL(DNS_R_FORMERR);
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+ /*
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+ * Immediately reject the entire transfer if the RR that is currently
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+ * being processed is an SOA record that is not placed at the zone
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+ * apex.
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+ */
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+ if (rdata->type == dns_rdatatype_soa &&
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+ !dns_name_equal(&xfr->name, name)) {
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+ char namebuf[DNS_NAME_FORMATSIZE];
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+ dns_name_format(name, namebuf, sizeof(namebuf));
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+ xfrin_log(xfr, ISC_LOG_DEBUG(3), "SOA name mismatch: '%s'",
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+ namebuf);
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+ FAIL(DNS_R_NOTZONETOP);
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+ }
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+
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redo:
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switch (xfr->state) {
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case XFRST_SOAQUERY:
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--
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2.26.3
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38
SOURCES/bind-9.11-rh1935152.patch
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38
SOURCES/bind-9.11-rh1935152.patch
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@ -0,0 +1,38 @@
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From 4757898440d52b0adbf7ec7ee7f0f89b61aac0fb Mon Sep 17 00:00:00 2001
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From: Mark Andrews <marka@isc.org>
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Date: Fri, 18 Dec 2020 13:31:07 +1100
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Subject: [PATCH] Inactive incorrectly incremented
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It is possible to have two threads destroying an rbtdb at the same
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time when detachnode() executes and removes the last reference to
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a node between exiting being set to true for the node and testing
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if the references are zero in maybe_free_rbtdb(). Move NODE_UNLOCK()
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to after checking if references is zero to prevent detachnode()
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changing the reference count too early.
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(cherry picked from commit 859d2fdad6d1c6ff20083a4c463a929cbeb26438)
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(cherry picked from commit 25150c15e7cfa73289f04470e2e699ebb7c28fef)
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---
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lib/dns/rbtdb.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/lib/dns/rbtdb.c b/lib/dns/rbtdb.c
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index 8ea4d47..77ef7a4 100644
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--- a/lib/dns/rbtdb.c
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+++ b/lib/dns/rbtdb.c
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@@ -1460,11 +1460,11 @@ maybe_free_rbtdb(dns_rbtdb_t *rbtdb) {
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for (i = 0; i < rbtdb->node_lock_count; i++) {
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NODE_LOCK(&rbtdb->node_locks[i].lock, isc_rwlocktype_write);
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rbtdb->node_locks[i].exiting = true;
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- NODE_UNLOCK(&rbtdb->node_locks[i].lock, isc_rwlocktype_write);
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if (isc_refcount_current(&rbtdb->node_locks[i].references)
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== 0) {
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inactive++;
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}
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+ NODE_UNLOCK(&rbtdb->node_locks[i].lock, isc_rwlocktype_write);
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}
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if (inactive != 0) {
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--
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2.26.3
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32
SOURCES/bind-9.11-rh1980757.patch
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32
SOURCES/bind-9.11-rh1980757.patch
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@ -0,0 +1,32 @@
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From a503519533eb375a5ce1f7566bfc153aac980d87 Mon Sep 17 00:00:00 2001
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From: Petr Mensik <pemensik@redhat.com>
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Date: Fri, 9 Jul 2021 20:52:21 +0200
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Subject: [PATCH] Use proper entropy to initialize tsig keyname
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Random names used on GSS backed nsupdate can conflict in specific
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situations. That might include starting a lot of machines from
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containers, where they took all similar time to start. PID and timestamp
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would be similar and therefore randomness is quite low. Use entropy to
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generate more random identifier and reduce chance of conflict.
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---
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bin/nsupdate/nsupdate.c | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/bin/nsupdate/nsupdate.c b/bin/nsupdate/nsupdate.c
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index 458aa76..d9e5a2b 100644
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--- a/bin/nsupdate/nsupdate.c
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+++ b/bin/nsupdate/nsupdate.c
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@@ -2941,7 +2941,9 @@ start_gssrequest(dns_name_t *master) {
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keyname = dns_fixedname_initname(&fkname);
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- isc_random_get(&val);
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+ result = isc_entropy_getdata(entropy, &val, sizeof(val), NULL, 0);
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+ if (result != ISC_R_SUCCESS)
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+ isc_random_get(&val);
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result = isc_string_printf(mykeystr, sizeof(mykeystr), "%u.sig-%s",
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val, namestr);
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if (result != ISC_R_SUCCESS)
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--
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2.31.1
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@ -68,7 +68,7 @@ Summary: The Berkeley Internet Name Domain (BIND) DNS (Domain Name System) serv
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Name: bind
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License: MPLv2.0
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Version: 9.11.26
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Release: 4%{?PATCHVER:.%{PATCHVER}}%{?PREVER:.%{PREVER}}%{?dist}
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Release: 6%{?PATCHVER:.%{PATCHVER}}%{?PREVER:.%{PREVER}}%{?dist}
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Epoch: 32
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Url: https://www.isc.org/downloads/bind/
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#
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@ -156,6 +156,12 @@ Patch177:bind-9.11-serve-stale.patch
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Patch178:bind-9.11-dhcp-time-monotonic.patch
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Patch179:bind-9.11-CVE-2020-8625.patch
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Patch180:bind-9.11-CVE-2021-25215.patch
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# https://gitlab.isc.org/isc-projects/bind9/commit/dfadbc9d7b485b1af62d77ad6c309792bbaabfdf
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Patch181:bind-9.11-CVE-2021-25214.patch
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# https://gitlab.isc.org/isc-projects/bind9/-/merge_requests/4533/diffs?commit_id=25150c15e7cfa73289f04470e2e699ebb7c28fef
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Patch182:bind-9.11-rh1935152.patch
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# https://gitlab.isc.org/isc-projects/bind9/-/merge_requests/5253
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Patch183:bind-9.11-rh1980757.patch
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# SDB patches
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Patch11: bind-9.3.2b2-sdbsrc.patch
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@ -552,6 +558,9 @@ are used for building ISC DHCP.
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%patch178 -p1 -b .time-monotonic
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%patch179 -p1 -b .CVE-2020-8625
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%patch180 -p1 -b .CVE-2021-25215
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%patch181 -p1 -b .CVE-2021-25214
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%patch182 -p1 -b .rh1935152
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%patch183 -p1 -b .rh1980757
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mkdir lib/dns/tests/testdata/dstrandom
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cp -a %{SOURCE50} lib/dns/tests/testdata/dstrandom/random.data
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@ -1163,7 +1172,7 @@ fi
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%triggerin -- selinux-policy < 3.14.1-44
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# Failsafe for upgrades, set to new default
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if [ -x "%{_sbindir}/selinuxenabled" -a -x "%{_sbindir}/setsebool" ] && %{_sbindir}/selinuxenabled; then
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"%{_sbindir}/setsebool" -P named_write_master_zones=1
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"%{_sbindir}/setsebool" -P named_write_master_zones=1
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fi
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%end
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@ -1603,8 +1612,16 @@ rm -rf ${RPM_BUILD_ROOT}
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%endif
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%changelog
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* Fri Jul 09 2021 Petr Menšík <pemensik@redhat.com> - 32:9.11.26-6
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- Use random entropy to generate unique TKEY identifiers (#1980916)
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* Fri May 07 2021 Petr Menšík <pemensik@redhat.com> - 32:9.11.26-5
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- Fix possible assertion failure isc_refcount_current == 0 in free_rbtdb
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(#1953056)
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* Tue Apr 27 2021 Petr Menšík <pemensik@redhat.com> - 32:9.11.26-4
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- Possible assertion failure on DNAME processing (CVE-2021-25215)
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- Insufficient IXFR checks could lead to assertion failure (CVE-2021-25214)
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* Mon Feb 15 2021 Petr Menšík <pemensik@redhat.com> - 32:9.11.26-3
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- Fix off-by-one bug in ISC SPNEGO implementation (CVE-2020-8625)
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